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CVE-2021-32769

Estado: ModificadaAlta (7.5)—

Micronaut is a JVM-based, full stack Java framework designed for building JVM applications. A path traversal vulnerability exists in versions prior to 2.5.9. With a basic configuration, it is possible to access any file from a filesystem, using "/../../" in the URL. This occurs because Micronaut does not restrict file access to configured paths. The vulnerability is patched in version 2.5.9. As a workaround, do not use `**` in mapping, use only `*`, which exposes only flat structure of a directory not allowing traversal. If using Linux, another workaround is to run micronaut in chroot.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Objectcomputing — Micronaut

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-32769",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
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  "affected": [
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      "affectedData": [
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          "vendor": "micronaut-projects",
          "product": "micronaut-core",
          "versions": [
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  "published": "2021-07-16T19:15:07.893",
  "references": [
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      "url": "https://github.com/micronaut-projects/micronaut-core/commit/a0cfeb13bf1ef5d692d16d4a3b91b34b7456bb11",
      "tags": [
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
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    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
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      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Micronaut is a JVM-based, full stack Java framework designed for building JVM applications. A path traversal vulnerability exists in versions prior to 2.5.9. With a basic configuration, it is possible to access any file from a filesystem, using \"/../../\" in the URL. This occurs because Micronaut does not restrict file access to configured paths. The vulnerability is patched in version 2.5.9. As a workaround, do not use `**` in mapping, use only `*`, which exposes only flat structure of a directory not allowing traversal. If using Linux, another workaround is to run micronaut in chroot."
    },
    {
      "lang": "es",
      "value": "Micronaut es un framework Java basado en JVM, diseñado para construir aplicaciones JVM. Se presenta una vulnerabilidad de salto de ruta en versiones anteriores a 2.5.9. Con una configuración básica, es posible acceder a cualquier archivo de un sistema de archivos, usando \"/../../\" en la URL. Esto ocurre porque Micronaut no restringe el acceso a los archivos a las rutas configuradas. La vulnerabilidad está parcheada en la versión 2.5.9. Como solución, no use \"**\" en uso solo de mapeo \"*\", que expone sólo la estructura plana de un directorio no permitiendo el salto. Si esta usando Linux, otra solución es ejecutar micronaut en chroot"
    }
  ],
  "lastModified": "2026-06-17T03:53:35.560",
  "configurations": [
    {
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        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "2.5.9"
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          "operator": "OR"
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  ],
  "sourceIdentifier": "security-advisories@github.com"
}